Castrol GTX Conventional Engine Oil 20W-50 5 Quart

Castrol® GTX® is one of the world’s most trusted engine oils. It's more than just oil. It’s liquid engineering that protects your engine against everyday problems. Severe driving conditions can cause the build up of sludge, a thick, tar-like substance that can block vital oilways like cholesterol that if left untreated can rob the engine of power and, ultimately, its life. Castrol GTX Double Action formula helps clean away old sludge,* and protects against new sludge formation better than tough industry standards.